%% You should probably cite rfc1978 instead of this I-D.
@techreport{ietf-pppext-predictor-00,
    number =    {draft-ietf-pppext-predictor-00},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-ietf-pppext-predictor/00/},
    author =    {David Rand},
    title =     {{PPP Predictor Compression Protocol}},
    pagetotal = 9,
    year =      1993,
    month =     dec,
    day =       15,
    abstract =  {This document describes the use of the Predictor data compression algorithm for compressing PPP encapsulated packets. This memo provides information for the Internet community. This memo does not specify an Internet standard of any kind.},
}